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Browse Bridge Database

23,716 bridges in the FHWA National Bridge Inventory in Iowa.

National Bridge Inventory Database

Browse 23,716 bridges from the Federal Highway Administration National Bridge Inventory. Filter by state, condition rating, or search by name and location.

Clear
BridgeLocationConditionYear BuiltLengthADT
DRAINAGE Iowa Fair 1948 7.6 m 11,400
MIDDLE RIVER Iowa Good 2014 102.7 m 11,400
MELROSE AVE Iowa Good 1983 97.2 m 11,400
DES MOINES RIVER Iowa Good 2016 254.2 m 11,354
FLETCHER AVE Iowa Good 1991 59.4 m 11,350
VANDALIA RD (BP) Iowa Good 1997 58.8 m 11,350
BLACK HAWK CK & RD Iowa Fair 1991 273.4 m 11,350
LINN CREEK Iowa Fair 1984 74.7 m 11,300
TAMARACK RD Iowa Good 1969 50.9 m 11,300
TAMARACK ROAD Iowa Fair 1969 50.9 m 11,300
DRAINAGE Iowa Fair 1973 11.3 m 11,300
US 65 Iowa Good 1994 198.7 m 11,256
SB US 63 Iowa Good 1991 64.6 m 11,250
BLACK HAWK CK & RD Iowa Fair 1991 273.4 m 11,250
CC & P RR Iowa Good 2019 36.3 m 11,200
WATERWAY Iowa Fair 1977 6.4 m 11,200
OVER UP RR Iowa Fair 1978 82.3 m 11,200
STEWART CREEK Iowa Good 1998 12.2 m 11,200
11TH ST Iowa Fair 1992 62.5 m 11,150
7TH ST Iowa Good 1992 39.0 m 11,150
EAST 9TH ST & CN RR Iowa Good 1992 127.4 m 11,150
EAST 9TH ST & CN RR Iowa Good 1992 143.0 m 11,150
11TH ST Iowa Fair 1992 62.5 m 11,150
7TH ST Iowa Good 1992 39.0 m 11,150
DRAINAGE DITCH Iowa Good 1978 6.4 m 11,100
OVER IMRL RR Iowa Fair 1970 54.6 m 11,100
MISSISSIPPI RVR RR S 2ND Iowa Fair 1956 1,269.5 m 11,100
MISSOURI RIVER AND RR Iowa Good 2010 1,309.7 m 11,100
FLETCHER AVE Iowa Good 1991 59.4 m 11,100
SE 38TH ST Iowa Good 1997 44.5 m 11,100
I-380 Iowa Good 1972 78.6 m 11,089
US 71 & BIKE TRAIL Iowa Good 2009 92.1 m 11,050
US 71 AND BIKE PATH Iowa Good 2008 92.1 m 11,050
4TH 5TH 6TH & W PARK Iowa Good 1991 406.3 m 11,050
INDIAN CREEK Iowa Good 1995 154.2 m 11,050
INDIAN CREEK Iowa Good 1995 154.2 m 11,050
MISSISSIPPI RIVER & RR Iowa Fair 1974 918.1 m 11,000
SW BR DRY RUN CREEK Iowa Good 2023 15.6 m 10,989
US 30 Iowa Fair 1975 85.6 m 10,989
DRY CREEK Iowa Poor 1915 21.3 m 10,953
IOWA RIVER Iowa Good 1969 108.2 m 10,950
IOWA RIVER Iowa Poor 1915 104.2 m 10,950
GREEN HILL RD Iowa Fair 1989 62.5 m 10,933
CEDAR RIVER Iowa Good 2003 200.6 m 10,921
STEWART CREEK Iowa Good 1998 11.6 m 10,900
IA 28 Iowa Good 2000 121.6 m 10,900
IA 28 Iowa Good 2000 127.4 m 10,900
SE 38TH ST Iowa Fair 1997 44.5 m 10,900
DRAINAGE DITCH Iowa Good 2001 15.9 m 10,900
WB I-80 OVER S-W CONN Iowa Fair 1966 92.1 m 10,850

Frequently Asked Questions

The National Bridge Inventory (NBI) is a federal database maintained by the Federal Highway Administration containing inspection data for all bridges on public roads in the U.S. with a span of more than 20 feet. Bridge owners must inspect each structure at least every 24 months.

ADT stands for Average Daily Traffic — the average number of vehicles crossing the bridge per day. Bridges are sorted by ADT by default because high-traffic bridges in poor condition pose the greatest risk to the most people.

Yes. Use the search field above to find bridges by name, location, or features crossed. You can also combine the search with state and condition filters to narrow your results.